Sass error since tom-select v2.2.0

[morgoth]

When using the provided CSS, the error is thrown:

Error: "var(--ts-pr-min)" is not a number for `max'
        on line 26:18 of node_modules/tom-select/dist/css/tom-select.default.css, in function `max`
        from line 26:18 of node_modules/tom-select/dist/css/tom-select.default.css

There was a try to fix this in https://github.com/orchidjs/tom-select/pull/479 but it still does not work.

I'm using Ruby on Rails with sass processor (sassc-rails) and trying to @import dist/css/tom-select.default.css